日光温室油桃节水灌溉试验研究

Water Saving Irrigation on Nectarine Grown in Green House

临夏州降水量稀少,水资源匮乏,为了提高水资源利用率,实行节水灌溉,在该地区进行了日光温室油桃节水灌溉试验研究,研究了滴灌与沟灌技术在生育期内对土壤含水率、作物的生育动态以及产量的影响。结果表明,滴灌比沟灌平均节水1251 m3/hm2,"92-1"品种在滴灌条件下比沟灌每株增产5.9 kg,每公顷增产29475 kg,日光温室反季节油桃栽培应选择滴灌节水技术。为了取得较好的经济效益,应采用滴灌最优灌溉制度。

There are scarce precipitation and limited water resources in Linxia region now. In order to improve water resources use efficiency and apply water saving irrigation technology in this area, experimental research was conducted on nectarine grown in green house with water saving irrigation technology to explore the effects of drip irrigation and ditch irrigation on soil water content, crop growth dynamics, and its yield during crop development. The results indicated that compared to ditch irrigation 1251 m^3/hm^2 water was saved through drip irrigation, and for cultivar ＂92 - 1＂ more crop yield of 5.9 kg per plant was increased under drip irrigation than that under ditch irrigation, that is, 29475 kg/hm^2 of yield increase, which suggested that drip irrigation technology should be chosen in antiseasonable cultivation of nectarine grown in green house. Therefore, to get better economic profits, optimum drip irrigation schedule should be adopted in antiseasonable cultivation of nectarine grown in green house.